1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.events;
24  
25  import com.liferay.portal.kernel.events.Action;
26  import com.liferay.portal.kernel.events.ActionException;
27  import com.liferay.portal.kernel.log.Log;
28  import com.liferay.portal.kernel.log.LogFactoryUtil;
29  import com.liferay.portal.kernel.util.GetterUtil;
30  import com.liferay.portal.kernel.util.Randomizer;
31  import com.liferay.portal.model.Group;
32  import com.liferay.portal.model.GroupConstants;
33  import com.liferay.portal.model.Layout;
34  import com.liferay.portal.model.LayoutTypePortlet;
35  import com.liferay.portal.service.GroupLocalServiceUtil;
36  import com.liferay.portal.service.LayoutLocalServiceUtil;
37  import com.liferay.portal.theme.ThemeDisplay;
38  import com.liferay.portal.util.WebKeys;
39  
40  import java.util.List;
41  
42  import javax.servlet.http.HttpServletRequest;
43  import javax.servlet.http.HttpServletResponse;
44  
45  /**
46   * <a href="RandomLayoutAction.java.html"><b><i>View Source</i></b></a>
47   *
48   * @author Brian Wing Shun Chan
49   */
50  public class RandomLayoutAction extends Action {
51  
52      public void run(HttpServletRequest request, HttpServletResponse response)
53          throws ActionException {
54  
55          try {
56  
57              // Do not randomize layout unless the user is logged in
58  
59              ThemeDisplay themeDisplay = (ThemeDisplay)request.getAttribute(
60                  WebKeys.THEME_DISPLAY);
61  
62              if (!themeDisplay.isSignedIn()) {
63                  return;
64              }
65  
66              // Do not randomize layout unless the user is accessing the portal
67  
68              String requestURI = GetterUtil.getString(request.getRequestURI());
69  
70              if (!requestURI.endsWith("/portal/layout")) {
71                  return;
72              }
73  
74              // Do not randomize layout unless the user is accessing a personal
75              // layout
76  
77              Layout layout = themeDisplay.getLayout();
78  
79              if (layout == null) {
80                  return;
81              }
82  
83              Group generalGuestGroup = GroupLocalServiceUtil.getGroup(
84                  themeDisplay.getCompanyId(), GroupConstants.GUEST);
85  
86              List<Layout> layouts = LayoutLocalServiceUtil.getLayouts(
87                  generalGuestGroup.getGroupId(), false);
88  
89              if (layouts.size() > 0) {
90                  Layout randomLayout = layouts.get(
91                      Randomizer.getInstance().nextInt(layouts.size()));
92  
93                  themeDisplay.setLayout(randomLayout);
94                  themeDisplay.setLayoutTypePortlet(
95                      (LayoutTypePortlet)randomLayout.getLayoutType());
96  
97                  request.setAttribute(WebKeys.LAYOUT, randomLayout);
98              }
99          }
100         catch (Exception e) {
101             _log.error(e, e);
102 
103             throw new ActionException(e);
104         }
105     }
106 
107     private static Log _log =
108         LogFactoryUtil.getLog(RandomLookAndFeelAction.class);
109 
110 }